278958780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{91163}}^1$

素因数の和:91195

約数の個数: 72

約数和(自身を含む): 895959792

約数和(自身を除く): 617001012

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 91163, 182326, 273489, 364652, 455815, 546978, 820467, 911630, 1093956, 1367445, 1549771, 1640934, 1823260, 2734890, 3099542, 3281868, 4102335, 4649313, 5469780, 6199084, 7748855, 8204670, 9298626, 13947939, 15497710, 16409340, 18597252, 23246565, 27895878, 30995420, 46493130, 55791756, 69739695, 92986260, 139479390, 278958780]

約数ペア:

[(1, 278958780), (2, 139479390), (3, 92986260), (4, 69739695), (5, 55791756), (6, 46493130), (9, 30995420), (10, 27895878), (12, 23246565), (15, 18597252), (17, 16409340), (18, 15497710), (20, 13947939), (30, 9298626), (34, 8204670), (36, 7748855), (45, 6199084), (51, 5469780), (60, 4649313), (68, 4102335), (85, 3281868), (90, 3099542), (102, 2734890), (153, 1823260), (170, 1640934), (180, 1549771), (204, 1367445), (255, 1093956), (306, 911630), (340, 820467), (510, 546978), (612, 455815), (765, 364652), (1020, 273489), (1530, 182326), (3060, 91163)]